# Latest

**URL:** https://discourse.nodered.org/latest.md?page=197

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 198

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## [Change the TTS voice in a function based on the contents of the message?](https://discourse.nodered.org/t/change-the-tts-voice-in-a-function-based-on-the-contents-of-the-message/87898)

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**Author:** [@Bob](https://discourse.nodered.org/u/Bob)\
**Replies:** 1\
**Last updated:** [13 May 2024 01:23 UTC](https://discourse.nodered.org/t/change-the-tts-voice-in-a-function-based-on-the-contents-of-the-message/87898 "2024-05-13T01:23:25Z")

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I am new to Node-RED and experimenting with functions What I would like to do is to change the voice used by TTS depending on the content of the message. I can parse the message and determine whether the voice should b…

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## [Node-RED Won't Start - ERR\_INVALID\_CALLBACK](https://discourse.nodered.org/t/node-red-wont-start-err-invalid-callback/87899)

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**Author:** [@badgers](https://discourse.nodered.org/u/badgers)\
**Replies:** 2\
**Last updated:** [13 May 2024 00:39 UTC](https://discourse.nodered.org/t/node-red-wont-start-err-invalid-callback/87899 "2024-05-13T00:39:32Z")

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This started happening yesterday, I think, but Node-RED won't start up anymore. It will start in safe mode, but I'm not even sure how to trace this error back to a particular node. I haven't added any new nodes in week…

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## [Change node- move, change or other](https://discourse.nodered.org/t/change-node-move-change-or-other/87794)

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**Author:** [@chrisgla](https://discourse.nodered.org/u/chrisgla)\
**Replies:** 12\
**Last updated:** [12 May 2024 22:03 UTC](https://discourse.nodered.org/t/change-node-move-change-or-other/87794 "2024-05-12T22:03:42Z")

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Been a while since I used Node Red and I'm struggling with a simple change :frowning: A test inject node works sending values of on/ off in this Json:- I've tried every permutation of change node I can think of to mo…

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## [Define Initial Page loaded](https://discourse.nodered.org/t/define-initial-page-loaded/87895)

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**Author:** [@arturv2000](https://discourse.nodered.org/u/arturv2000)\
**Replies:** 2\
**Last updated:** [12 May 2024 20:48 UTC](https://discourse.nodered.org/t/define-initial-page-loaded/87895 "2024-05-12T20:48:38Z")

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Hi Using DahboardV2 is there any way to define which page is loaded initially by the browser? I mean, if I access the url http://xxxx.com/dashboard how to define which dashboard page is the loaded by default. I was un…

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## [KNX Ultimate Device Node message format](https://discourse.nodered.org/t/knx-ultimate-device-node-message-format/87843)

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**Author:** [@Intelect](https://discourse.nodered.org/u/Intelect)\
**Replies:** 1\
**Last updated:** [12 May 2024 14:27 UTC](https://discourse.nodered.org/t/knx-ultimate-device-node-message-format/87843 "2024-05-12T14:27:39Z")

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I am trying to create a flow which uses a node from the module node-red-contrib-knx-ultimate The flow uses a trigger, a function node, a knx device node and finally another function node. The first function should Init…

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## [How to make 2 msgs go to a single database row ... I get 2 separate rows?](https://discourse.nodered.org/t/how-to-make-2-msgs-go-to-a-single-database-row-i-get-2-separate-rows/87841)

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**Author:** [@questuk](https://discourse.nodered.org/u/questuk)\
**Replies:** 8\
**Last updated:** [12 May 2024 13:29 UTC](https://discourse.nodered.org/t/how-to-make-2-msgs-go-to-a-single-database-row-i-get-2-separate-rows/87841 "2024-05-12T13:29:32Z")

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Hi, I have tried but cannot work this out, I am sure it is simple but i cannot find how. A simple test example and flow ... Insert a number, trim payload to fixed and the other is payload and is an electricity cost su…

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## [Dashboard 2 layout different between playground and node red](https://discourse.nodered.org/t/dashboard-2-layout-different-between-playground-and-node-red/87881)

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**Author:** [@gerry](https://discourse.nodered.org/u/gerry)\
**Replies:** 2\
**Last updated:** [12 May 2024 12:41 UTC](https://discourse.nodered.org/t/dashboard-2-layout-different-between-playground-and-node-red/87881 "2024-05-12T12:41:37Z")

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trying (still) to make the transition to dashboard 2, found a vue playground and doing different layouts. That's when the world fell apart. I get one layout in the playground and a different one in node red using the sam…

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## [Math.asin in function-node](https://discourse.nodered.org/t/math-asin-in-function-node/87891)

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**Author:** [@ak68](https://discourse.nodered.org/u/ak68)\
**Replies:** 2\
**Last updated:** [12 May 2024 11:22 UTC](https://discourse.nodered.org/t/math-asin-in-function-node/87891 "2024-05-12T11:22:58Z")

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Hallo together, I want to build a function node to calculate from MPU6050-Gyro to angle with function: var korr = -(((Math.asin(msg.payload)/9.81)\*180/Math.Pi)-2.8); msg.payload = korr; return msg; ... but I do´n´…

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## [Can I use the Worldmap nodes with UIBUILDER? (Yes)](https://discourse.nodered.org/t/can-i-use-the-worldmap-nodes-with-uibuilder-yes/87890)

<div class="topic-metadata">

**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 1\
**Last updated:** [12 May 2024 10:34 UTC](https://discourse.nodered.org/t/can-i-use-the-worldmap-nodes-with-uibuilder-yes/87890 "2024-05-12T10:34:08Z")

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Question: Is it possible to use the node-red-contrib-web-worldmap nodes with UIBUILDER? Short answer: Yes, absolutely. If you are using a default Node-RED/UIBUILDER configuration, all you need to do is add the followi…

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## [Dashboard 2 (flowfuse) dynamic button](https://discourse.nodered.org/t/dashboard-2-flowfuse-dynamic-button/87885)

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**Author:** [@bltDefender](https://discourse.nodered.org/u/bltDefender)\
**Replies:** 4\
**Last updated:** [12 May 2024 08:02 UTC](https://discourse.nodered.org/t/dashboard-2-flowfuse-dynamic-button/87885 "2024-05-12T08:02:20Z")

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Hi all, coming from dashboard 1 I wanted to try out jumping on 2. I am currently failing at simple dynamic button backgrounds. I use buttons to control state of several devices. All buttons toggle power by triggering mq…

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## [Node red dashboard on apple watch](https://discourse.nodered.org/t/node-red-dashboard-on-apple-watch/87838)

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**Author:** [@tkocher](https://discourse.nodered.org/u/tkocher)\
**Replies:** 4\
**Last updated:** [12 May 2024 02:41 UTC](https://discourse.nodered.org/t/node-red-dashboard-on-apple-watch/87838 "2024-05-12T02:41:32Z")

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is it possible to have some switches of the nodered dashboard on apple watch? How? Thanks for any hint.

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## [How can I display every messages in Node-RED Dashboard 2 without them being overwritten by new messages?](https://discourse.nodered.org/t/how-can-i-display-every-messages-in-node-red-dashboard-2-without-them-being-overwritten-by-new-messages/87808)

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**Author:** [@briblort](https://discourse.nodered.org/u/briblort)\
**Replies:** 8\
**Last updated:** [11 May 2024 14:52 UTC](https://discourse.nodered.org/t/how-can-i-display-every-messages-in-node-red-dashboard-2-without-them-being-overwritten-by-new-messages/87808 "2024-05-11T14:52:04Z")

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Hello everyone, I am currently working with Node-RED and receive payloads from ChirpStack that contain text messages as strings. I am currently using a text node in the Node-RED dashboard to display these messages. Howe…

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## ["Dialog" open/close consistent on all connected devices](https://discourse.nodered.org/t/dialog-open-close-consistent-on-all-connected-devices/87871)

<div class="topic-metadata">

**Author:** [@gNeandr](https://discourse.nodered.org/u/gNeandr)\
**Replies:** 3\
**Last updated:** [11 May 2024 14:37 UTC](https://discourse.nodered.org/t/dialog-open-close-consistent-on-all-connected-devices/87871 "2024-05-11T14:37:23Z")

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I'm coming back to using "Dialog" as @hotNipi recommended. (I missed using the thread Modal element above others -- Platform problem - #8 by hotNipi - it was closed 5h ago) Dialog solves the problem of windows not stac…

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## [Color gradient animated background glitch](https://discourse.nodered.org/t/color-gradient-animated-background-glitch/87875)

<div class="topic-metadata">

**Author:** [@Udina](https://discourse.nodered.org/u/Udina)\
**Replies:** 0\
**Last updated:** [11 May 2024 12:55 UTC](https://discourse.nodered.org/t/color-gradient-animated-background-glitch/87875 "2024-05-11T12:55:00Z")

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Hello everyone, I want to modify the background of my NodeRed dashboard with the node in order to make the interface more user-friendly. I can modify the background without problem by creating a fixed gradient image l…

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## [Dashboard opening very slow](https://discourse.nodered.org/t/dashboard-opening-very-slow/87858)

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**Author:** [@Udina](https://discourse.nodered.org/u/Udina)\
**Replies:** 13\
**Last updated:** [11 May 2024 10:50 UTC](https://discourse.nodered.org/t/dashboard-opening-very-slow/87858 "2024-05-11T10:50:45Z")

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Good morning, I'm having a problem with the display speed of my nodered dashboard, it takes about 5 minutes before it is displayed in my Firefox browser. Here is my configuration: Nodered and Mosquitto are hosted on …

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## [Http endpoint accept only the first url parameter](https://discourse.nodered.org/t/http-endpoint-accept-only-the-first-url-parameter/87869)

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**Author:** [@colletda](https://discourse.nodered.org/u/colletda)\
**Replies:** 2\
**Last updated:** [11 May 2024 09:34 UTC](https://discourse.nodered.org/t/http-endpoint-accept-only-the-first-url-parameter/87869 "2024-05-11T09:34:22Z")

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Hi community I'm new to node-red and try to config a simple http endpoint (REST API). I startet adapt with the samples from the cookbook: this one with one single parameter works fine (https://cookbook.nodered.org/http/…

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## [Help with button node](https://discourse.nodered.org/t/help-with-button-node/87867)

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**Author:** [@ak68](https://discourse.nodered.org/u/ak68)\
**Replies:** 4\
**Last updated:** [11 May 2024 05:34 UTC](https://discourse.nodered.org/t/help-with-button-node/87867 "2024-05-11T05:34:57Z")

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I´m using the basic funktions of ui\_button node. Now, I would like to change the colours, depending on the payload (number) I set {{msg.color}} for backround at node-settings and if (msg.payload === "1") { msg.color…

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## [Help with motion trigger and reset](https://discourse.nodered.org/t/help-with-motion-trigger-and-reset/87847)

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**Author:** [@esrfsdfa](https://discourse.nodered.org/u/esrfsdfa)\
**Replies:** 5\
**Last updated:** [11 May 2024 00:30 UTC](https://discourse.nodered.org/t/help-with-motion-trigger-and-reset/87847 "2024-05-11T00:30:27Z")

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I have a light which turns on at dusk and turns off at a specific time of night, this flow works as expected: I am trying to add an additional flow for the same light to act as a night light: If the light is off, a…

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## [Send string data to influxdb v2 running in Portainer](https://discourse.nodered.org/t/send-string-data-to-influxdb-v2-running-in-portainer/87812)

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**Author:** [@telescopio](https://discourse.nodered.org/u/telescopio)\
**Replies:** 7\
**Last updated:** [10 May 2024 18:15 UTC](https://discourse.nodered.org/t/send-string-data-to-influxdb-v2-running-in-portainer/87812 "2024-05-10T18:15:31Z")

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Influxdb v2 running in Portainer I create a Bucket name Red, under Organization name is OBS, already create a Token and is running in localhost;8086 I have this data from my sensor as a string from a HTTP Get node d…

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## [Dashboard Template - reuse of switch or dropdown within a generic template](https://discourse.nodered.org/t/dashboard-template-reuse-of-switch-or-dropdown-within-a-generic-template/87717)

<div class="topic-metadata">

**Author:** [@lori](https://discourse.nodered.org/u/lori)\
**Replies:** 4\
**Last updated:** [10 May 2024 15:35 UTC](https://discourse.nodered.org/t/dashboard-template-reuse-of-switch-or-dropdown-within-a-generic-template/87717 "2024-05-10T15:35:48Z")

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Hello, I have a question regarding the reusage of custom controls like switch or dropdown within a template node. I made some custom controls like a shutter control to change postion/slats (with dynamic icons dependendi…

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## [Dropdown with preset option](https://discourse.nodered.org/t/dropdown-with-preset-option/87811)

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**Author:** [@gNeandr](https://discourse.nodered.org/u/gNeandr)\
**Replies:** 4\
**Last updated:** [10 May 2024 15:09 UTC](https://discourse.nodered.org/t/dropdown-with-preset-option/87811 "2024-05-10T15:09:16Z")

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The dashboard dropdown is set up with msg.options. A user selection shows the menu item and a payload is sent also. However, the dropdown field initially only displays a message like "select". How is it possible to "pr…

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## [Grafana dashboard change](https://discourse.nodered.org/t/grafana-dashboard-change/87822)

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**Author:** [@mikluk](https://discourse.nodered.org/u/mikluk)\
**Replies:** 4\
**Last updated:** [10 May 2024 13:10 UTC](https://discourse.nodered.org/t/grafana-dashboard-change/87822 "2024-05-10T13:10:42Z")

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Hello, I need an help with automated dashboard change in Grafana ( I do not have enough knowledges about Grafana ). In our module we are using automatic change according to value from PLC. Changing of dashboard is workin…

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## [Dashboard Gauge - programatically change the 'Units'](https://discourse.nodered.org/t/dashboard-gauge-programatically-change-the-units/87840)

<div class="topic-metadata">

**Author:** [@mikeyd0407](https://discourse.nodered.org/u/mikeyd0407)\
**Replies:** 2\
**Last updated:** [10 May 2024 07:03 UTC](https://discourse.nodered.org/t/dashboard-gauge-programatically-change-the-units/87840 "2024-05-10T07:03:28Z")

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Hi Everyone, I'm looking for a way to programatically change the 'Units' field in my flow. For example I wan't to be able to change the Units from 'BAR' to 'PSI' depending on my end device configuration. I looked at mo…

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## [Worldmap for Dashboard 2](https://discourse.nodered.org/t/worldmap-for-dashboard-2/87842)

<div class="topic-metadata">

**Author:** [@samyak5](https://discourse.nodered.org/u/samyak5)\
**Replies:** 1\
**Last updated:** [9 May 2024 21:08 UTC](https://discourse.nodered.org/t/worldmap-for-dashboard-2/87842 "2024-05-09T21:08:23Z")

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So I want to use the Worldmap on my dashboard, which I've already made using the dashboard V2. Is that possible by any chance? I'm aware I can use it on a separate webpage, but is it possible on the same dashboard? I …

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## [Show WebPage on Dashboard](https://discourse.nodered.org/t/show-webpage-on-dashboard/87832)

<div class="topic-metadata">

**Author:** [@bk1989](https://discourse.nodered.org/u/bk1989)\
**Replies:** 5\
**Last updated:** [9 May 2024 19:49 UTC](https://discourse.nodered.org/t/show-webpage-on-dashboard/87832 "2024-05-09T19:49:05Z")

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I'm trying to show a web page on my dashboard for additional information. For testing I tried to show "https://duckduckgo.com/". But on the dashboard all I see is a error message stating: duckduckgo refused to connect. …

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## [Cant find uibuilder project folder](https://discourse.nodered.org/t/cant-find-uibuilder-project-folder/87785)

<div class="topic-metadata">

**Author:** [@Intelect](https://discourse.nodered.org/u/Intelect)\
**Replies:** 9\
**Last updated:** [9 May 2024 19:15 UTC](https://discourse.nodered.org/t/cant-find-uibuilder-project-folder/87785 "2024-05-09T19:15:17Z")

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Hi, I need some help with uibuilder if someone can point me in the right direction. It is for a specific project and I am using a server which is running Armbian 21.08.1 Hirsute. NodeRed which was preconfigured and setu…

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## [Show "Active Node" and errors in template based web front-end](https://discourse.nodered.org/t/show-active-node-and-errors-in-template-based-web-front-end/87830)

<div class="topic-metadata">

**Author:** [@MCPCN](https://discourse.nodered.org/u/MCPCN)\
**Replies:** 5\
**Last updated:** [9 May 2024 14:34 UTC](https://discourse.nodered.org/t/show-active-node-and-errors-in-template-based-web-front-end/87830 "2024-05-09T14:34:38Z")

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I'm using node-red as a back-end and simple front-end for a report, which pulls data from various sources and populates a Word document using docx-template, ready for editing/publishing to our customers. The front-end i…

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## [Dashboard 2.0 table use TextDecoder cannot display spaces](https://discourse.nodered.org/t/dashboard-2-0-table-use-textdecoder-cannot-display-spaces/87828)

<div class="topic-metadata">

**Author:** [@Mikelee](https://discourse.nodered.org/u/Mikelee)\
**Replies:** 4\
**Last updated:** [9 May 2024 10:03 UTC](https://discourse.nodered.org/t/dashboard-2-0-table-use-textdecoder-cannot-display-spaces/87828 "2024-05-09T10:03:33Z")

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Use example can be displayed \[ { "colA": "A C. A", "colB": "Hello.", "colC": 3 }, { "colA": "B A .", "colB": "World. ", "colC": 5 } \] but using Uint…

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## [My Node-RED flow feels heavy on Raspberry Pi 4](https://discourse.nodered.org/t/my-node-red-flow-feels-heavy-on-raspberry-pi-4/87090)

<div class="topic-metadata">

**Author:** [@KamalKenzu12](https://discourse.nodered.org/u/KamalKenzu12)\
**Replies:** 13\
**Last updated:** [9 May 2024 09:41 UTC](https://discourse.nodered.org/t/my-node-red-flow-feels-heavy-on-raspberry-pi-4/87090 "2024-05-09T09:41:39Z")

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Hello everyone! I am a new user in using Node-RED :smiley: I want to ask something about Node-RED on my Raspberry Pi 4 which feels heavy and as a result makes my dashboard feel delayed (for example when using a switch, …

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## [Listen to flow hook and trigger invoke a api](https://discourse.nodered.org/t/listen-to-flow-hook-and-trigger-invoke-a-api/87831)

<div class="topic-metadata">

**Author:** [@HenryTrang](https://discourse.nodered.org/u/HenryTrang)\
**Replies:** 0\
**Last updated:** [9 May 2024 09:07 UTC](https://discourse.nodered.org/t/listen-to-flow-hook-and-trigger-invoke-a-api/87831 "2024-05-09T09:07:33Z")

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hi veteran when flow ready i need to invoke an interface. may i listen to the flow hook and get triggered? like in vue project oncreated, onmounted, beforedestroy.

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